External links are a type of hyperlink that play an important role in search engine optimization. External links direct users to other domains and also pass on “link juice” to the target page. Linking to authoritative and relevant content is not only beneficial for search engine optimization, but also provides useful resources for visitors.
On the other hand, if links are found to be low quality or irrelevant, then they will harm the linking website’s ranking and popularity.
Building and attracting external links from authoritative sources is a major component of any SEO campaign. The quantity, quality, and relevancy of external links pointed to a target website are an important factor in search engine ranking algorithms.